[certid] SRV-ID examples

[Dan Winship <[e-mail]>]

draft-saintandre-tls-server-id-check-11, section 3.2 says:

   A certificate for the IMAP-accessible email server at
   "mail.example.net" might include SRV-IDs of "_imap.mail.example.net"
   and "_imaps.mail.example.net" (see [EMAIL-SRV]) and a DNS-ID of
   "mail.example.net".

As I understand it, the SRV-ID is based on the source domain, not the
derived domain, and so "_imap.mail.example.net" would only be correct if
you were expecting clients to do a SRV lookup for
"_imap._tcp.mail.example.net". But the more usual case would be doing a
lookup for "_imap._tcp.example.net", in which case the corresponding
SRV-ID would "_imap.example.net". Right?

So the example should say something like

   A certificate for the IMAP-accessible email server at
   "mail.example.net", which is pointed to by the SRV records
   "_imap._tcp.example.net" and "_imaps._tcp.example.net", might
   include SRV-IDs of "_imap.example.net" and "_imaps.example.net"
   (see [EMAIL-SRV]) and a DNS-ID of "mail.example.net".

Likewise for the XMPP example that follows it, and the corresponding
examples in 4.2.2.

-- Dan